Regardless of whether you use ULN or an Oracle Linux yum server, software updates are achieved using standard dnf commands on the system and depend on the system having the appropriate ULN channel subscriptions or yum repositories enabled. You can use the dnf install and dnf update commands to handle general package installation or updates. To update a system to use the latest Read More
Category: CentOS
How to Log Messages from a Remote Host to a Specific File in Rsyslog
Sometimes, you may want to save the log from a remote server to a specific file instead of /var/log/messages. you can set up log forwarding later that won’t include lots of junk. Step 1 Create a new conf file in /etc/rsyslog.d with below two lines, for example. we are going to save the log messages Read More
How to Change Default Permissions of /var/log on Linux
By default, /var/log/messages* are created with read-write permissions for ‘root’ user only. There might be a requirement to make the log files world readable for eg to allow an application to read and process the data in it. It is best to only change $umask once and use $FileCreateMode instead to change the mode. Add the Read More
How to Use WinSCP with SUDO Permission
There is an option in WinSCP that does exactly what you are looking for:
How to Upgrade CentOS Stream 8 to CentOS Stream 9
This article will show how to update to CentOS Stream 9 from CentOS Stream 8. If only official repositories are used it is fairly easy to upgrade to the new rolling based CentOS Stream 9 release, which follows the Red Hat Enterprise Linux 9. Using unofficial or users’ repositories CentOS Stream 8 may lead to unstable system or break user’s system following this Read More
How to Convert an SSL Certificate to Other Formats
It is highly recommended that you convert to and from .pfx files on your own machine using OpenSSL so you can keep the private key there. Use the following OpenSSL commands to convert SSL certificate to different formats on your own machine: OpenSSL Convert PEM Convert PEM to DER openssl x509 -outform der -in certificate.pem Read More